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Form1.cs
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Form1.cs
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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using DevExpress.XtraEditors;
using DevExpress.XtraEditors.Drawing;
using DevExpress.XtraEditors.ViewInfo;
namespace WindowsFormsApplication313 {
public partial class Form1 : Form {
public Form1() {
InitializeComponent();
}
}
[ToolboxItem(true)]
public class CustomListBoxControl : ListBoxControl {
public CustomListBoxControl()
: base() {
}
protected override BaseStyleControlViewInfo CreateViewInfo() {
return new CustomListBoxViewInfo(this);
}
protected override BaseControlPainter CreatePainter() {
return new CustomBaseListBoxPainter();
}
}
class CustomListBoxViewInfo : BaseListBoxViewInfo {
public CustomListBoxViewInfo(BaseListBoxControl owner)
: base(owner) {
}
protected override BaseListBoxItemPainter CreateItemPainter() {
return new CustomBaseListBoxItemPainter();
}
}
public class CustomBaseListBoxItemPainter : ListBoxItemPainter {
public CustomBaseListBoxItemPainter()
: base() {
}
int indent = 20, customLeftIndent = 5;
public override int GetHorzPadding(ListBoxItemObjectInfoArgs e) {
//change width between items
int result = base.GetHorzPadding(e);
return result + indent;
}
public override void DrawObject(DevExpress.Utils.Drawing.ObjectInfoArgs e) {
base.DrawObject(e);
}
protected override Rectangle CalcItemTextRectangle(ListBoxItemObjectInfoArgs e) {
//change the left margin here
return Rectangle.Inflate(e.TextRect, -GetHorzTextIndent(e) - customLeftIndent, 0);
}
public override int GetVertPadding(ListBoxItemObjectInfoArgs e) {
int result = base.GetVertPadding(e);
return result + indent;
}
}
class CustomBaseListBoxPainter : BaseListBoxPainter {
public CustomBaseListBoxPainter()
: base() {
}
//avoid painting the control's border
protected override void DrawBorder(ControlGraphicsInfoArgs info) {
// base.DrawBorder(info);
}
}
}